1. PRESENTERS
RAHMAT ALI SU/10-001-074081
NASIRUDDIN SU/10-001-074075
NUMAN NAZIR SU/10-001-074122
SARHAD UNIVERSITY OF SCIENCE & INFORMATION TECHNOLOGY
PESHAWAR
DATE: 22 Dec,2012

2. INTRODUCTION
The construction of a new
railway is a huge project
and each mile required
Rs.15 to 20 million
depending upon:
 The topography of area
Standard of construction
And some other features

3. Why we construct a new
railway lines?
The need of constructing new railway line arises
because of one or more consideration such as:
Political reason.
Development of backward areas.
To connect new trade centers.
To shorten the existing rail link etc.

4. Preliminary investigations for a new
railway line
Traffic survey:
It includes detail
study of traffic
condition:
• Possible traffic
the railway line
carry.
• Standard of
railway line.
• Promising traffic
the railway line
will carry.

5. Preliminary investigations for a new
railway line
Reconnaissance
survey:
This survey consists of a rapid
and rough investigation of the
area by using equipments of
survey:
Such as
Prismatic compass
Binocular
pedometer
Geodimeter
for measurement upto 80 km
distance during day and night
Use of laser etc
Distance upto 70 km can be
measured using laser.

6. Preliminary investigations
for a new railway line
Preliminary survey:
This survey consists of a detailed
instrumental examination of the
route to be selected in order to
estimate the cost of the proposed
railway line
By using:
Total station
Tachometer
Dumpy level etc.

7. Final location survey
Once a decision has been taken for a particular railway line to
be constructed a final location survey is done
Instruments used are the same as in the case of preliminary
survey
 Alignment is fully staked.
More detailed project report is prepared.
All working drawings are prepared.

8. Modern surveying
techniques
It includes:
Satellite imagery
Aerial photographs
Contour maps
Digital modeling.
Photogrammetric
modeling sheets

9. CONSTRUCTION OF NEW RAILWAY LINES
• Once the survey completed then construction
works begin
• It includes
Land acquisition
Earthwork and bridges
Station building, staff quarters
Ballasting of tracks

10. CONSTRUCTION OF NEW RAILWAY LINES
Land acquisition:
It includes:
Width of formation.
Side slopes.
Width of berms.
Borrow pits.

11. CONSTRUCTION OF NEW RAILWAY LINES
Earth work for formation:
 The height of earth work depends on the high flood level.
 Mechanically compaction is done generally by sheep foot
roller.

12. CONSTRUCTION OF NEW RAILWAY LINES
Bridges construction:
Bridges increased the cost of the railway project.
Bridges may be:
Reinforced cement slab bridges.
Steel bridges etc.

13. CONSTRUCTION OF NEW RAILWAY LINES
Track laying:
Once the formation is ready then
just track laying are required.
It consists:
Laying of ballast
Laying of sleepers and rails
 Fastenings

14. PLATE LAYING METHODS
1) Tram line method:
A temporary line laid
by the side of proposed
track.
Modification of this
method is the “side
method”.
Side method are
applicable when the
service road is parallel to
the track

15. PLATE LAYING METHODS
2) American method:
 Rails and sleepers are
first assembled and then
taken to the site.
At site track panels are
then unloaded either
manually or with the help
of cranes
For concrete sleepers
generally cranes are used.